This listing is for one large teleidoscope featuring 3D carved black walnut end caps and laser engraved leather wrap. It is approximately 2.5" in diameter and 12.5" long, and comes with a padded carrying case for adventures outside the home. A teleidoscope is a type of kaleidoscope which uses a clear marble as a fisheye lens to focus whatever you want to look at with it into the mirrors which then reflect the image into the patterns seen within. This teleidoscope features a 3 mirror equilateral mirror system to produce interlocking triangle and hexagonal type patterns. Hand pic for size reference only!